Firstly check to see if it's on a single-phase operation, then reconnect correctly. If the damper is not properly adjusted, make the necessary adjustments and clean any accumulated dusts. When the resistance in the piping is too big, please lessen it.

What do I do when there is no airflow?

Check to see if the impeller is rotating or not.and repair the electric motor if it's necessary. If the damper is closed, please adjust the damper mechanism correctly.

There are abnormal noises or vibrations.

Firstly check to see if the equipment is securely fastened to the base. Clean any dusts off the impeller. When there are noises coming from the bearing, replace it

What do I do when it uses too much electrical current?

Firstly check to see if it's on a single-phase operation, then reconnect correctly. If the damper is closed, please adjust the damper mechanism correctly. When the resistance in the piping is too big, please lessen it. Clean any dusts off the impeller.

What do I do when it doesn't rotate even though it's switched on?

Make sure that the machine is correctly connected to the power supply and replace the fuse if it's broken. If the overload safety guard mechanism has been tripped, reduce the load and restart.